Sustainable Transportation Lab


November 14, 2016

The love and hate with e-bikes in Chinese cities

Seattle is considering bringing in an electric-assist bike (e-bike) share program proposed by Bewegen around April of 2017 to replace the Pronto bike sharing that is running currently in the city. But according to the Chinese cities that represent the first-ever widespread adoption of commercial electric bikes, they are far from perfect. China has been…


November 11, 2016

Realizing the carpool potential in the Puget Sound Region

Public agencies have been trying to incentivize carpooling (or at least dis-incentivize driving alone) for years, but through pavement markings and toll booths rather than with technology.  The implementation of lane restrictions and tolling in the form of High Occupancy Vehicle (HOV), High Occupancy Toll (HOT), and Express Toll lanes serve as different means to…


November 9, 2016

Is Metro maximizing their resources?

When riding the bus one night around 8:00 I realized that I was on a 60 foot articulated bus carrying just me and one other passenger. During rush hour I have been on these buses when they have been nearly full. However, it seemed odd to me that the same bus would still be used…


November 7, 2016

Is going electric the answer?

The Pronto bike sharing system began operating in Seattle in October 2014 with 500 bikes at 54 stations located throughout  the University District and downtown area of Seattle. In 2015, the system ran into funding issues and in March 2016 was bought by the City of Seattle for $1.4 million to keep it from shutting down….


November 4, 2016

Construction emissions from Sound Transit 3

I was contacted by a reporter earlier this week about fact-checking some numbers relating to the new light rail construction in Sound Transit 3. In particular, would the carbon emissions savings from shifting car travel to light rail be enough to offset the emissions associated with constructing the light rail system? Especially when we consider…